Add 81/9 and 42/90
1st number: 9 0/9, 2nd number: 42/90
81/9 + 42/90 is 142/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 9 × 10 = 90,
81/9 = 81 × 10/9 × 10 = 810/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
42/90 = 42 × 1/90 × 1 = 42/90 - Add the two like fractions:
810/90 + 42/90 = 810 + 42/90 = 852/90 - 852/90 simplified gives 142/15
- So, 81/9 + 42/90 = 142/15
In mixed form: 97/15
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